Insulated render · Hertfordshire
Insulated render systems in Stevenage
Need insulated render in Stevenage? Tell us about the property and we'll arrange a free survey and a written quote. Two-tone schemes, such as a darker plinth or entrance surround, are an option on houses in Stevenage.
- Free survey in SG1 and nearby
- Guide price from £105 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Stevenage
Postcode, service and a phone number is all we need.
Included as standard
- Suitable for houses, extensions and whole buildings
- One system: board, adhesive, fixings, mesh, primer and render
- Through-coloured finishes in hundreds of shades
- Combines a new look with lower heat loss

Before we quote in Stevenage
We also cover Hitchin and Letchworth Garden City, close to Stevenage. It's roughly 19 miles from Stevenage to Watford, the largest town in Hertfordshire. The East of England has a mix of post-war estates, inter-war semis and older solid brick and flint cottages, with some system-built council homes on post-war estates.
Much of Hertfordshire sits in the lower wind-driven rain exposure bands, which keeps the choice of finishes wide — though hilltop, coastal and exposed gable walls can still need a tougher specification, so we check the actual site.
We bring finish samples to Stevenage surveys so colours can be judged in daylight against your roof and windows.
- Postcode district
- SG1
- County or area
- Hertfordshire
- Nation
- England
- Nearby
- Hitchin, Letchworth Garden City, Welwyn Garden City, Harpenden
Permissions in England
For a house in Stevenage, external insulation or render is often permitted development if it looks similar to the existing walls; conservation areas, flats, commercial buildings and listed buildings need permission or consent, so we check your address first.
Insulating or re-rendering more than half of a wall's area brings in Part L of the Building Regulations, so building control is notified and the wall is upgraded to about 0.30 W/m²K where practical.
Is insulated render the same as EWI?
Yes — insulated render is the everyday name for a rendered EWI system. Some people also use it for thin thermal renders containing aerogel or cork, which are applied 20–40mm thick on heritage walls. They insulate far less than board systems, so we treat them as a specialist option.
Insulated render systems prices in Stevenage
| Item | Guide price | Notes |
|---|---|---|
| Insulated render (EPS + silicone) | £105–£145 per m²0% VAT | Excluding scaffold |
| Mineral wool insulated render | £125–£170 per m²0% VAT | |
| Contrasting colour features | +£8–£20 per m²0% VAT | Where used |
Confirmed by a fixed written quote after survey. 0% VAT: installing insulation in a home is zero-rated until 31 March 2027, so these figures are the total; 5% applies from 1 April 2027.
From enquiry to finished wall
Tell us about the property
Use the quote tool or form, or call. Photos help.
Free survey
We measure, check the walls and confirm approvals.
Fixed written quote
System, details, access, exclusions and VAT in writing.
Installation
Scheduled for suitable weather, with a clear programme.
Insulated render in Stevenage: questions
Can insulated render be applied in winter?
Only in suitable weather — typically above 5°C and rising, with no frost or rain during curing. Winter programmes allow for lost days.
How long does insulated render last?
Typically 25–30 years or more with maintenance; the manufacturer's documentation sets the service life for the specific system.
Will my house look different?
Yes, if it was brick or pebble dash. If you want to keep a brick look, a brick-slip finish over the insulation is an option.
Do you cover Stevenage?
Yes — we survey and quote insulated render in Stevenage (SG1) and nearby Hitchin, Letchworth Garden City and Welwyn Garden City, with a fixed written price before any work starts.